December 25, 2022. The Jack the Ripper Story will officially begin serialization on December 25, 2022. The Jack the Ripper side story comes from "The Last Valkyrie", which was adapted from the original work by Umemura Shinya and was announced as an animation on December 19, 2020. The film is produced by Graphinica and will be launched on Netflix on June 17, 2021, with 12 episodes in total.